val extensions =
        try {
          X509TrustManagerExtensions(trustManager)
        } catch (iae: IllegalArgumentException) {
          // X509TrustManagerExtensions checks for checkServerTrusted(X509Certificate[], String, String)
          null
        }

      return when {
        extensions != null -> AndroidCertificateChainCleaner(trustManager, extensions)
        else -> null
      }
    }